docs: def update(self, resource, id_or_uri):
          """
          Updates a registered Device Manager.
  
          Args:
              resource (dict): Object to update.
              id_or_uri: Can be either the Device manager ID or URI.
  
          Returns:
              dict: The device manager resource.
          """
          return self._client.update(resource=resource, uri=id_or_uri)